Subject:RE: Deluxe and Series 20 X forks Date:Mon Nov 5 12:39:31 2018
Response to:6945
Hi Gene,
Can you measure the 3 main forks from the top of the fork tube along the
“imaginary line” plane to the centerline where the hole for the rocker stud
would intersect and post? Also, measurements for each of the
corresponding cushion/ spring forks from the top of the spring barrel(with
cap removed) to the centerline of the rocker stud holes? I should be able
to assist further once these measurements are known.

This weekend I finished straightening 3 sets of forks for Series 20 X
projects. I came across vastly different dimensions in the main fork lead
measurement in all 3 forks. I built a set of blocks to hold the top end of the
fork on a steel plate. I was able to pull the fork into alignment, hold it there
and heat the bent areas, relieving the stress. Once cool, the fork is
removed from the jig and it holds it's shape.

Here is the issue: Strike an imaginary line through the center neck of the
fork and extend it past the bottom end of the fork legs. Now measure
perpendicular from that imaginary line to the center hole of the fork leg
where the rocker pin is installed. This is what I will call the lead of the fork
and in essence determines rake. The measurements I found for these three
forks are: 3 1/4", 4 1/8" and 4 11/16". All of these forks were in pretty good
shape, each had a slight twist and the spacing at the bottom end was
slightly narrow. After discussion with Steve Thielicke and Benjamin Binns, I
decided to just straighten each one to match it's neighboring leg. So, they
are all straight but have different lead measurements. None of the forks
showed signs of having been wrecked or bent severely. They all look to be
a factory curve on the lower leg.

My question is does anyone know if there were different forks made
during the Deluxe years and if so, what did they fit, and why the difference?

According to the Henderson parts lists I have that go up to 1925 (?) and the
20-24 Excelsior parts books, the entire fork assembly carries the same part
number for X and Deluxe. This corresponds with sales literature stating the
fork assembly was interchangeable between K model, Deluxe and X
through 24. I don't have a 26 or later Deluxe parts book but I assumed the
fork was the same through mid or late 27, or when ever they fitted the front

Any ideas why the differences?

Gene Harper